Carbureter.



J. G. WILLET.

CARBURETER.

'AYPLIGATION FILED FEB.23,1907.

Patented 1360.211910.

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fau Q u J. G. WILLBT.

GARBU-RETER.

APPLIOATIO FILEDAFBB. 23, 1907.

Patented Dec. 27, 1910.

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inlet c ofthe carbureter.

' or bridge-piece Nirn sra'rns ATN', simon. I

JOHN G. WILLET, or BUFFALO,

NEW YORK, ASSIGNOR 0F EIGHTEEN ONE-HUN- DREDTHS TO. ISIDORE MICHAEL, EIGHTEEN ONE-HUNDREDTHS TO EDWARD MICHAEL, EIGH'IEEN ONE-HUNDREDTHS T0 CLARK L. IKNGHAllr, AND EIGHTEEN ONE-HUNDREDTHS T0,ELGOOD C. LUFKI N, 'ALL 0F BUFFALU, NEW YORK.-

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Application filed February 23, 1907. vSerial No. 358,852.

Specification of Letters Patent.

Patented Dec. 27, 1910.

To all whom 'it may concern:

Be it known that I, JOHN G. l/VILLET, a citizen of the United States, residing at Buffalo, in the. county of Erie and State of New York,\have invented a new and useful Improvement in Carbureters, of which the following is a specification. 1

This invention relates to an improved carbureter for hydrocarbon or explosive engines.

One of its'objects is the construction of a simple carbureter of this class which maintains the proper proportion of air and gasolene or other suitable liquid hydrocarbon to produce a perfect explosive mixture at all engine speeds.

'The invention improve the construction with a view of renderin of vthe carbureter its parts easy of assemblage and facilitating access to them A for cleaning or .other purposes.

In the accompanying 'drawings consisting of 2 sheets: Figure l is a sectional elevation of the ca'rbureter'.v Figs. 2, 3 and 4 are hori enlargement at the outer end of'the gasolene The chamber B contains a float D which controls the customary cut-of valve 0l. y

As shown in Figs; 1 and 3, the `inlet. c is formed in one of the radial arms of a spider E arranged 'horizontally within the lower section A1 and preferably cast integral therewith. The inlet 0 leads to a valve chamber f' formed inthe hub of saidv spider and containing an adjustable needle valve f1 of'any suitable construction adapted to close against a conical seat `at the 'lower end of a passage gv formed in a head or manifold G. The stem of this valve extends through'a stufling box inthe bottom 'of the 'carbureter-casing andfhas the usual head for turning it, as shown.-

. Thehead Gf has a Vreduced steinl has lthe further object to' controlled by a suitable throttle valve K. the construction shown in the drawings, this suitable construction having'a discharge nipple b which isscrewed into an chamber f or otherwise removably secured in place. Connected with the bore or passage fg are a number of gasolene pipes tending radially from the head G and havis screwed into the upperl end of the valve-A ing upwardly-turned portions h1 forming spray or vaporizing nozzles. In the drawings sui of such nozzles are shown which are arranged centrally opposite the spaces be-v tween the spider arms E, but a greater or less number may be employed and they may be differently spaced, if desired.

I is the air-inlet passage or connection of the carbureter carried by its lower section Al, and preferably connected therewith bey -low the spider E, as shown, whereby the incoming air is broken up into numerous streams.

J .'ndicates the mixture-outlet connected.

with the upper section A of the casing aiIid valve is of the hollow rotary type, and tted in the cylindrical neck of the carbureter, the valve being open at its lower end and closed at its upper end and provided in its side with a discharge port c ada ted to register with the mixture outlet J. t its upper end the throttle valve is provided with a hollow stem k1 which turns in an opening or bear- 'ing in the cap of the carbureter casing-. To

the projecting end of this stem 1s secured an actuatingvlever L adapted to be connected with the hand lever or equivalent actuating device on an automobile or motor boat.

M indicates a horizontal diaphragm or partition arranged in the casing and dividing the same into a lower inlet chamber N and an upper mixing chamber N1.with

which the air inlet connection I and the mixture outlet connection J communicate, respectively. The diaphragm, which -is preferably integral with the upper section A of the casing, is provided with an annular row of air pass/ages m which extend through the same and are arranged respectively coincident withthe vaporiding nozzles hl, which latte'i' preferably .project into the passages, as shown in fuel issuing mixed with passages.

the air ascendingthrough the Figs. 1 andv2, so' that the i from the nozzle is intimately1 These passagesare always open and-have such an aggregate` area as to supply l sary additional quantity of air to maintain conical with its apex a proper explosive mixture underl such 'conditions, the diaphragm M is rovided centrally with a comparatively arge supple# mental air port or passage o controlled by an automatic valveP which remains closed at low and medium engine speeds, but opensl automatically under the influence of the increased suction of the engine when the engine runs at high speed, permittingl air to enter the mixing chamber both through the main passages m and tha supplemental passage V0. The automatic valve is preferably arranged downward and closes against a corresponding seat 'at the upper ed e of said supplemental passage. The va ve slides vertically on a guide rod p arranged centrally in the carbureter casing and made vertically adjustable in the hollowstem of the throttle valve by means of a screwthreaded joint p1, as shown, or any other suitable means.- The .guide-rod is secured in position by a lock nut, p2 an its projecting upper end has a knurled head for turning it.

g indicatesa spring app rod between a fixed col ar g1 thereof and the gub of the valve P and tending to hold the valve to its seat. By -adjusting thel guide up or do Wh, the tension regulatedV to `offer the the valveg. and 'extending it above land as showh; it, serves also as a deflectoiI which ldirects the vair ascending through the supiied to the guiddesired resistance to -plenientary passage o outwardly in all di- -"'a1r as1we'll as the air dra 'recti'ons ,toward the mouths of 4the 'vaporizyingnozzles h1, thus bringing such additional through. thev main -passages m, into intimate they vaporizedgosolene issuing from the and uniformly carery satisfactory reextending the valve'Pv some .distance below the diaphragm4 M and making its large upper end of such l diameter thatthe same overhangs the inner edgps of the main air in igs. 1 and 2.

In the operation of the carbureter when the engine' isrunning 'at low or medium s eed, the automatic valve A13 remains c osed and sufcient air is supplied through the main Apassages'm to produce a proper explosive mixture under these conditions.

passages m, as show'n speed, and resistance of the spring of the spring may be By making this valve conical.-

below its seat,

-ing cham contact with outlet, and a dia hra When however, the engine is run at a high come. by the increased suction -of t and the valve P is opened more or less acl cording to the degree of speed, supplying the necessary additional quantity of air to orm aperfect explosive mixture with thel increased supply .of gasolene due to the greater suction. A practically constant proportion of air and as is thus maintained regardless of the speed ofthe engine.

By dividing the casing of the carbureter into upper and llower sections at a point be-4 low the diaphragm M and mounting the vaporizing nozzles h1 on the-'lower section,

4is overg., e engine as shown, the nozzlesare accessible upon removing the clamping bolts .a and can be easily cleaned. This construction also perthe detachable head G which carries the vaporizing nozzles, without ,disturbing the adjustment of the needle-valve f1.

I claim as my invention: y f

1. In a carbureteigthe combination of'a casing having fuel and air inlets, a mixture outlet, and a diaphragm which -divides the casing into ani inlet chamber and a mixing chamber, said diaphragm having one or more -main air passages and a supplemental air passage, vaporizing nozzles arranged adjacent to vsaid sages and. connected with" and an automatic valve normally clos' i said supplemental passage and controlled by lthe suction of the -motor supplied by the carbureter, said valve havmg deflecting means for directing the air which 'flows through the supplemental passa e toward said nozzles, substantially as set orth.

2. Ina carbureter, the combination of a casing havingl fuel :and air inlets, ajmixture outlet, and a diaphragm which divides thecasin into an inlet chamber and a mixer, said diaphragm having a row of main air passages and asupplemental air passage surrounded by the row of main passages, vaporizing nozzles arranged adjacent to said main passages, and. an automatic valve'normally closing said supplemental air passage and having a conical efiecting face, substantially as set forth.'

3. "In a carbureter, the combination of a casing having fuel and air inlets, a mixture whichl divides the amber and a mixing m having a row of main` air pascasin into ani et fc cham er, said diaphra main air passages an passageisurrounded by the row of main passages, vaporizing nozzles arranged adjacent to said main passages, and an automatic. valve normally clsingfsaid supplemental passage and having a'conicaldeflecting face which` extends 'abovefand below said diaphragm, substantially asy set forth.

a t:supplemental air mits the ready removal and replacement of f said fuel inlet,

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4. In a carbureter, the combination of a 130 easing having iffuel and air inlets,l a finiture outlet, andv al diaphragm which divides the 7 casing into an inlet chamber and a mixing chamber, said diaphragm having a row of mam air passages and a supplemental" air passage surrounded by said row of Amain passages, vaporizing'nozzles projecting into said main assages, and an automatic valve normally c osing said-supplemental passage and havinga conical defleeting face which extends above said diaphragm and overi hangs said main passages, subst-antially as i set forth.

45. In a carbureter, the colnbination of a casing having fuel and air inlets, a mixture outlet, and a diaphragm which dividesfthe .casing intoan inlet chamber and a mixingchamber,

, around the central 'spectively, and connected passages an'dconon said guide and normally closing said Supv outlet and a diaphragm dividing the casing -into an inlet and a mixing chamber, said diaphragm having a central air passage and j I .35

a plurality of outer passages arranged times, a, plurality o va orizing nozzles arranged adjacent to saidp outer passa es, rei With said el inlet, and an automatic valve normally closing said central passage and'c'ontrolled by the suction of the motor supplied reter, substantially as set forth.

Witness my handthis 20th day of' February, 1907.

y JOHN e. Winner. y Witnesses: l

(1F. GEYEB,

E. (urRAHAM.

assageV and open at all.

against said valve,

by the carbu- 

